Reapply "Add missing admin action files and navigation links"

This reverts commit 4d515bc400.

src/messages/en.json

@@ -697,6 +697,7 @@
         "advertisements": "Advertisements",
         "writeableBoxes": "Writeable boxes",
         "photos": "Photos",
+        "tickets": "Tickets",
         "usersAndAccess": "Users & access",
         "users": "Users",
         "bans": "Bans",
@@ -717,6 +718,15 @@
         "calendar": "Calendar",
         "radio": "Radio",
         "radioHistory": "Radio history",
+        "radioBanners": "Banners",
+        "radioEmbed": "Embed",
+        "radioApiKeys": "API keys",
+        "radioModeration": "Moderation",
+        "radioSettings": "Settings",
+        "radioMonitoring": "Monitoring",
+        "radioPoints": "Points",
+        "radioRanks": "Ranks",
+        "radioAutodj": "Auto DJ",
         "system": "System",
         "commandocentrum": "Commandocentrum",
         "emulator": "Emulator",
@@ -729,6 +739,9 @@
         "theme": "Theme",
         "media": "Media",
         "favicon": "Favicon",
+        "sounds": "Sounds",
+        "translations": "Translations",
+        "import": "Import",
         "settings": "Settings",
         "backToSite": "Back to site",
         "housekeeping": "Housekeeping",
@@ -2018,4 +2031,4 @@
       }
     }
   }
-}
+}